A.
No person being the owner or having custody and control of any dog shall permit or allow such dog to run or to be at large in the streets or on the walks or public grounds of the City unless such dog shall wear a collar or a harness and be effectively restrained by a chain or leash not exceeding six feet in length. The name and address of such owner or custodian shall be legibly written, printed or stamped upon the collar or a tag attached to such collar or harness of such dog, except when on the premises of the owner or on the premises of another person with the knowledge and assent of such other person.
B.
Proof of the running or being at large of a dog contrary to the provisions of this section shall be presumptive evidence that the person in whose name such dog is registered and/or the person who harbors such dog is the person who permitted or allowed such dog to run or be at large.